HA-DSP1804 18000W 4-Channel 1U Class D Power Amplifier with FIR DSP and Network Audio

The HA-DSP1804 is a high-efficiency 4-channel Class D professional power amplifier with built-in FIR DSP processing and network audio control. Delivering 4 × 1800W at 8Ω, 4 × 2800W at 4Ω, and 4 × 4500W at 2Ω, it provides powerful, stable, and clean audio performance for demanding professional sound systems.

Designed in a compact 1U rack-mount chassis, the HA-DSP1804 is ideal for fixed installations, commercial venues, houses of worship, conference rooms, live events, and professional AV projects. It combines high output power, advanced DSP control, network-ready flexibility, and reliable protection in one professional amplifier platform.

Key Features

1. Powerful 4-Channel Output

The HA-DSP1804 delivers strong and reliable output power for professional loudspeaker systems:

• 4 × 1800W at 8Ω
• 4 × 2800W at 4Ω
• 4 × 4500W at 2Ω
• 2 × 5600W at 8Ω Bridged
• 2 × 9000W at 4Ω Bridged

It supports 4Ω, 8Ω, 2Ω, and bridge mode operation, offering flexible configuration for different speaker systems and installation requirements.

2. Advanced FIR DSP Processing

Built-in DSP functions allow precise system tuning and speaker management. The HA-DSP1804 supports:

• Mute
• Polarity
• Gain
• Delay
• Limiter
• Mixer
• FIR Filter
• PEQ
• All-Pass
• Crossover

With 4 × 2048 taps FIR filters, the amplifier provides accurate sound control, improved phase response, and optimized speaker performance.

3. Network Audio & Remote Control

The HA-DSP1804 supports professional digital network audio control and transport, making it suitable for modern AV installations and centralized audio systems.

The RJ45 network port allows convenient system connection, remote control, and flexible audio distribution for commercial and professional sound projects.

4. Compact 1U Rack-Mount Design

The lightweight and compact 1U rack space design saves installation space and reduces system weight, making it ideal for touring racks, fixed installation cabinets, and professional AV systems.

The front-panel USB port allows quick DSP setup and software control, while balanced XLR inputs help ensure clean and stable signal transmission.

5. Reliable Protection System

The HA-DSP1804 is designed for long-term professional use with multiple protection functions, including:

• Short circuit protection
• DC protection
• Over-voltage protection
• Under-voltage protection
• Over-current protection
• Over-temperature protection
• Clipping protection
• Speaker protection limiter

These safeguards help protect both the amplifier and connected loudspeaker systems during demanding operation.

Ideal Applications

The HA-DSP1804 is suitable for a wide range of professional audio systems, including:

• Live sound reinforcement
• Churches and houses of worship
• Conference rooms
• Commercial sound systems
• Restaurants, retail stores, and offices
• PA and background music systems
• Fixed installation projects
• Professional AV systems
• Network audio installation projects

Why Choose HA-DSP1804?

• High power output in a compact 1U chassis
• Built-in FIR DSP speaker processing
• Network audio control and transport
• Flexible 4-channel and bridge mode operation
• Stable performance for 2Ω, 4Ω, and 8Ω systems
• Professional protection for long-term reliability
• Easy setup through USB and software control

Technical Specifications